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67
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1 package myVncProxy;
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2
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3 import java.awt.*;
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4 import java.awt.event.*;
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5
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6 class OptionsNoFrame{
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7
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8 static String[] names = {
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9 "Encoding",
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10 "Compression level",
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11 "JPEG image quality",
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12 "Cursor shape updates",
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13 "Use CopyRect",
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14 "Restricted colors",
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15 "Mouse buttons 2 and 3",
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16 "View only",
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17 "Scale remote cursor",
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18 "Share desktop",
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19 };
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20
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21 static String[][] values = {
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22 { "Auto", "Raw", "RRE", "CoRRE", "Hextile", "Zlib", "Tight", "ZRLE" },
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23 { "Default", "1", "2", "3", "4", "5", "6", "7", "8", "9" },
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24 { "JPEG off", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9" },
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25 { "Enable", "Ignore", "Disable" },
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26 { "Yes", "No" },
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27 { "Yes", "No" },
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28 { "Normal", "Reversed" },
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29 { "Yes", "No" },
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30 { "No", "50%", "75%", "125%", "150%" },
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31 { "Yes", "No" },
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32 };
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33
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34 final int
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35 encodingIndex = 0,
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36 compressLevelIndex = 1,
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37 jpegQualityIndex = 2,
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38 cursorUpdatesIndex = 3,
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39 useCopyRectIndex = 4,
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40 eightBitColorsIndex = 5,
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41 mouseButtonIndex = 6,
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42 viewOnlyIndex = 7,
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43 scaleCursorIndex = 8,
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44 shareDesktopIndex = 9;
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45
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46 Label[] labels = new Label[names.length];
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47 Choice[] choices = new Choice[names.length];
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48 Button closeButton;
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49 VncProxyService viewer;
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50
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51
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52 //
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53 // The actual data which other classes look at:
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54 //
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55
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56 int preferredEncoding;
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57 int compressLevel;
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58 int jpegQuality;
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59 boolean useCopyRect;
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60 boolean requestCursorUpdates;
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61 boolean ignoreCursorUpdates;
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62
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63 boolean eightBitColors;
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64
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65 boolean reverseMouseButtons2And3;
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66 boolean shareDesktop;
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67 boolean viewOnly;
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68 int scaleCursor;
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69
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70 boolean autoScale;
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71 int scalingFactor;
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72
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73 //
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74 // Constructor. Set up the labels and choices from the names and values
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75 // arrays.
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76 //
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77
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78 OptionsNoFrame(VncProxyService v) {
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79 viewer = v;
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80
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81 for (int i = 0; i < names.length; i++) {
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82 labels[i] = new Label(names[i]);
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83
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84 choices[i] = new Choice();
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85
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86
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87 for (int j = 0; j < values[i]. length; j++) {
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88 choices[i].addItem(values[i][j]);
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89 }
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90 }
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91
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92 // Set up defaults
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93
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94 choices[encodingIndex].select("Auto");
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95 choices[compressLevelIndex].select("Default");
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96 choices[jpegQualityIndex].select("6");
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97 choices[cursorUpdatesIndex].select("Enable");
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98 choices[useCopyRectIndex].select("Yes");
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99 choices[eightBitColorsIndex].select("No");
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100 choices[mouseButtonIndex].select("Normal");
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101 choices[viewOnlyIndex].select("No");
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102 choices[scaleCursorIndex].select("No");
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103 choices[shareDesktopIndex].select("Yes");
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104
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105 // But let them be overridden by parameters
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106
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107 for (int i = 0; i < names.length; i++) {
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108 String s = viewer.readParameter(names[i], false);
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109 if (s != null) {
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110 for (int j = 0; j < values[i].length; j++) {
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111 if (s.equalsIgnoreCase(values[i][j])) {
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112 choices[i].select(j);
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113 }
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114 }
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115 }
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116 }
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117
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118 // FIXME: Provide some sort of GUI for "Scaling Factor".
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119
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120 autoScale = false;
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121 scalingFactor = 100;
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122 String s = viewer.readParameter("Scaling Factor", false);
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123 if (s != null) {
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124 if (s.equalsIgnoreCase("Auto")) {
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125 autoScale = true;
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126 } else {
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127 // Remove the '%' char at the end of string if present.
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128 if (s.charAt(s.length() - 1) == '%') {
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129 s = s.substring(0, s.length() - 1);
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130 }
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131 // Convert to an integer.
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132 try {
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133 scalingFactor = Integer.parseInt(s);
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134 }
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135 catch (NumberFormatException e) {
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136 scalingFactor = 100;
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137 }
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138 // Make sure scalingFactor is in the range of [1..1000].
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139 if (scalingFactor < 1) {
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140 scalingFactor = 1;
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141 } else if (scalingFactor > 1000) {
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142 scalingFactor = 1000;
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143 }
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144 }
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145 }
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146
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147 // Make the booleans and encodings array correspond to the state of the GUI
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148
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149 setEncodings();
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150 setColorFormat();
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151 setOtherOptions();
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152 }
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153
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154
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155 //
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156 // Disable the shareDesktop option
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157 //
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158
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159 void disableShareDesktop() {
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160 labels[shareDesktopIndex].setEnabled(false);
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161 choices[shareDesktopIndex].setEnabled(false);
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162 }
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163
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164 //
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165 // setEncodings looks at the encoding, compression level, JPEG
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166 // quality level, cursor shape updates and copyRect choices and sets
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167 // corresponding variables properly. Then it calls the VncViewer's
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168 // setEncodings method to send a SetEncodings message to the RFB
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169 // server.
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170 //
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171
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172 void setEncodings() {
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173 // useCopyRect = choices[useCopyRectIndex].getSelectedItem().equals("Yes");
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174
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175 preferredEncoding = RfbProto.EncodingRaw;
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176 boolean enableCompressLevel = false;
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177
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178 if (choices[encodingIndex].getSelectedItem().equals("RRE")) {
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179 preferredEncoding = RfbProto.EncodingRRE;
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180 } else if (choices[encodingIndex].getSelectedItem().equals("CoRRE")) {
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181 preferredEncoding = RfbProto.EncodingCoRRE;
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182 } else if (choices[encodingIndex].getSelectedItem().equals("Hextile")) {
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183 preferredEncoding = RfbProto.EncodingHextile;
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184 } else if (choices[encodingIndex].getSelectedItem().equals("ZRLE")) {
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185 preferredEncoding = RfbProto.EncodingZRLE;
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186 } else if (choices[encodingIndex].getSelectedItem().equals("Zlib")) {
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187 preferredEncoding = RfbProto.EncodingZlib;
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188 enableCompressLevel = true;
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189 } else if (choices[encodingIndex].getSelectedItem().equals("Tight")) {
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190 preferredEncoding = RfbProto.EncodingTight;
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191 enableCompressLevel = true;
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192 } else if (choices[encodingIndex].getSelectedItem().equals("Auto")) {
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193 preferredEncoding = -1;
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194 }
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195
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196 // Handle compression level setting.
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197
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198 try {
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199 compressLevel =
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200 Integer.parseInt(choices[compressLevelIndex].getSelectedItem());
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201 }
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202 catch (NumberFormatException e) {
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203 compressLevel = -1;
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204 }
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205 if (compressLevel < 1 || compressLevel > 9) {
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206 compressLevel = -1;
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207 }
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208 labels[compressLevelIndex].setEnabled(enableCompressLevel);
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209 choices[compressLevelIndex].setEnabled(enableCompressLevel);
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210
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211 // Handle JPEG quality setting.
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212
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213 try {
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214 jpegQuality =
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215 Integer.parseInt(choices[jpegQualityIndex].getSelectedItem());
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216 }
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217 catch (NumberFormatException e) {
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218 jpegQuality = -1;
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219 }
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220 if (jpegQuality < 0 || jpegQuality > 9) {
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221 jpegQuality = -1;
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222 }
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223
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224 // Request cursor shape updates if necessary.
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225
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226 requestCursorUpdates =
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227 !choices[cursorUpdatesIndex].getSelectedItem().equals("Disable");
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228
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229 if (requestCursorUpdates) {
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230 ignoreCursorUpdates =
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231 choices[cursorUpdatesIndex].getSelectedItem().equals("Ignore");
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232 }
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233
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234 viewer.setEncodings();
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235 }
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236
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237 //
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238 // setColorFormat sets eightBitColors variable depending on the GUI
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239 // setting, causing switches between 8-bit and 24-bit colors mode if
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240 // necessary.
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241 //
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242
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243 void setColorFormat() {
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244
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245 eightBitColors =
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246 choices[eightBitColorsIndex].getSelectedItem().equals("Yes");
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247
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248 boolean enableJPEG = !eightBitColors;
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249
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250 labels[jpegQualityIndex].setEnabled(enableJPEG);
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251 choices[jpegQualityIndex].setEnabled(enableJPEG);
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252 }
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253
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254 //
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255 // setOtherOptions looks at the "other" choices (ones that do not
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256 // cause sending any protocol messages) and sets the boolean flags
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257 // appropriately.
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258 //
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259
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260 void setOtherOptions() {
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261
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262 reverseMouseButtons2And3
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263 = choices[mouseButtonIndex].getSelectedItem().equals("Reversed");
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264
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265 viewOnly
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266 = choices[viewOnlyIndex].getSelectedItem().equals("Yes");
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267 if (viewer.vc != null)
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268 viewer.vc.enableInput(!viewOnly);
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269
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270 shareDesktop
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271 = choices[shareDesktopIndex].getSelectedItem().equals("Yes");
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272
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273 String scaleString = choices[scaleCursorIndex].getSelectedItem();
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274 if (scaleString.endsWith("%"))
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275 scaleString = scaleString.substring(0, scaleString.length() - 1);
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276 try {
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277 scaleCursor = Integer.parseInt(scaleString);
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278 }
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279 catch (NumberFormatException e) {
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280 scaleCursor = 0;
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281 }
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282 if (scaleCursor < 10 || scaleCursor > 500) {
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283 scaleCursor = 0;
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284 }
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285 if (requestCursorUpdates && !ignoreCursorUpdates && !viewOnly) {
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286 labels[scaleCursorIndex].setEnabled(true);
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287 choices[scaleCursorIndex].setEnabled(true);
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288 } else {
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289 labels[scaleCursorIndex].setEnabled(false);
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290 choices[scaleCursorIndex].setEnabled(false);
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291 }
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292 if (viewer.vc != null)
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293 viewer.vc.createSoftCursor(); // update cursor scaling
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294 }
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295
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296
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297 //
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298 // Respond to actions on Choice controls
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299 //
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300
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301 public void itemStateChanged(ItemEvent evt) {
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302 Object source = evt.getSource();
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303
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304 if (source == choices[encodingIndex] ||
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305 source == choices[compressLevelIndex] ||
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306 source == choices[jpegQualityIndex] ||
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307 source == choices[cursorUpdatesIndex] ||
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308 source == choices[useCopyRectIndex]) {
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309
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310 setEncodings();
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311
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312 if (source == choices[cursorUpdatesIndex]) {
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313 setOtherOptions(); // update scaleCursor state
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314 }
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315
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316 } else if (source == choices[eightBitColorsIndex]) {
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317
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318 setColorFormat();
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319
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320 } else if (source == choices[mouseButtonIndex] ||
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321 source == choices[shareDesktopIndex] ||
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322 source == choices[viewOnlyIndex] ||
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323 source == choices[scaleCursorIndex]) {
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324
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325 setOtherOptions();
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326
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327 }
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328 }
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329
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330 }
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